//package com.crmweb.filter;
//
//import java.io.IOException;
//
//import javax.servlet.Filter;
//import javax.servlet.FilterChain;
//import javax.servlet.FilterConfig;
//import javax.servlet.ServletException;
//import javax.servlet.ServletRequest;
//import javax.servlet.ServletResponse;
//import javax.servlet.http.HttpServletRequest;
//import javax.servlet.http.HttpServletResponse;
//import javax.servlet.http.HttpSession;
//
//import com.crmweb.entity.Users;
//import com.crmweb.tool.ConstantUtil;
//
//public class LoginFilter implements Filter{
//
//	public void destroy() {
//		// TODO Auto-generated method stub
//		System.out.println("过滤器销毁……");
//	}
//
//	public void doFilter(ServletRequest request, ServletResponse response,
//			FilterChain chain) throws IOException, ServletException {
//		// TODO Auto-generated method stub
//		System.out.println("过滤条件……");
//		HttpServletRequest req=(HttpServletRequest) request;
//		HttpServletResponse res=(HttpServletResponse) response;
//		HttpSession session=req.getSession();
//		Users users=(Users)session.getAttribute(ConstantUtil.USERS);
//		if(users==null){
//			res.sendRedirect("login.html");
//			return;
//		}else
//			chain.doFilter(request, response);
//	}
//
//	public void init(FilterConfig arg0) throws ServletException {
//		// TODO Auto-generated method stub
//		System.out.println("初始化过滤器……");
//	}
//}
